Home / 132,129.08-182,395.02-81,150.08

Finding the Fourth Proportional to 132,129.08, 182,395.02 and 81,150.08

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Solution

The fourth proportional to 132,129.08, 182,395.02 and 81,150.08 is: 112,022.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,129.08 : 182,395.02 = 81,150.08 : x
  2. Step 2: Convert to fraction form
    132,129.08/182,395.02 = 81,150.08/x
  3. Step 3: Cross multiply
    132,129.08x = 182,395.02 × 81,150.08
  4. Step 4: Simplify right side
    132,129.08x = 14,801,370,464.60
  5. Step 5: Solve for x
    x = 14,801,370,464.60/132,129.08
  6. Step 6: Final answer
    x = 112,022.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.